This book is the first volume of a qualitative study of social mobility over three generations in post-war Hong Kong. The family histories and work-life histories of eighty-nine respondents who were middle-aged middle-class parents -- teachers, managers, and their spouses -- were collected between 1996 and 1997. This book examines the processes of social mobility in order to elucidate how social mobility is generated at the micro level and it investigates the consequences of social mobility with a view to illuminating how the system of social stratification could be reproduced or changed over generations.